Every phone number in the United States starts with three important digits: the area code. While they may seem small, these numbers carry big meaning—they help route calls, identify locations, and connect people to businesses and services.
But here's the challenge: with over 300 active area codes in the U.S. and new ones added regularly, it's nearly impossible to remember them all. That's why we built the Area Code Lookup Tool—a fast, accurate, and easy way to identify any U.S. area code or find which ones belong to a city or state.
This page gives you an overview of U.S. area codes, why they matter, and how our tool makes it simple to get the answers you need in seconds.
An area code is the first three digits of a 10-digit U.S. phone number. It tells you the geographic location or service area of the number.
Example:
212 → Manhattan, New York
310 → Los Angeles, California
305 → Miami, Florida
Without area codes, it would be impossible to organize millions of phone numbers across a country as large as the United States.
📌 With our tool: You don't have to guess. Type in any 3-digit area code, and instantly see the city, state, time zone, and map location.
You may wonder, why not just search on Google? While that works, results can often be scattered, outdated, or filled with ads. Our tool gives you verified, up-to-date information in one place.
Here are the main ways people use it:
Identify Unknown Calls
Search by City or State
Business Research
Stay Ahead of Changes
💡 Pro tip: Save time and avoid spam by looking up the area code before calling back.
Our Area Code Tool is designed for simplicity and speed.
🔍 Step 1: Enter either a 3-digit area code OR a city/state name in the search bar.
📍 Step 2: Instantly see details including city, state, time zone, and overlays.
📊 Step 3: Explore related area codes nearby for a broader view.
The database is constantly updated with information from the North American Numbering Plan (NANP), ensuring accuracy.
Here's what you'll find when you use the tool:
212 → Covers Manhattan, NY, time zone: Eastern, overlays with 646 and 332.
415 → Covers San Francisco, CA, time zone: Pacific, overlays with 628.
702 → Covers Las Vegas, NV, time zone: Pacific, overlays with 725.
No matter what number you're checking, our tool breaks it down clearly.
Unlike random search results, our platform is built specifically for U.S. area codes. Here's why users love it:
✅ Accurate & Reliable – Updated directly from NANP and FCC announcements.
✅ Fast Search – Instant results, no digging through multiple websites.
✅ Multiple Options – Search by area code, city, or state.
✅ Business-Friendly – Helps with customer outreach and local marketing.
✅ Mobile Ready – Works seamlessly on smartphones, tablets, and desktops.
Whether you're an individual trying to figure out where a call is coming from or a business building trust with local numbers, our tool has you covered.
Many businesses use our tool to research area codes before buying new numbers. For example:
A real estate agent in Los Angeles might prefer 310 or 213 numbers to appear local.
A startup in Chicago may want a 312 number for credibility.
A customer support team may choose toll-free numbers like 800 or 888 for nationwide reach.
Our lookup tool makes it easy to plan and choose the right codes for better customer trust and branding.
Not all area codes are tied to a geographic region. Our tool also helps you identify special codes, such as:
800, 888, 877, 866, 855, 844, 833 – Toll-free numbers used nationwide.
900 – Premium-rate services.
700 – Carrier-specific services.
With one quick search, you'll know if the call is local, toll-free, or premium.
As cities grow, they often run out of available phone numbers. That's when new overlay codes are introduced.
For example:
New York's 212 is overlaid by 646 and 332.
Los Angeles's 213 is overlaid by 323.
Our tool keeps track of these changes so you always have the most current list of area codes—something many static lists online fail to update.
212 (New York) and 213 (Los Angeles) were among the first area codes.
The middle digit of older area codes was always 0 or 1 (because of rotary dial ease).
Many people treat their original area code as part of their identity, even after moving.
Some businesses pay a premium to get "vanity numbers" with desirable codes.
Our tool isn't just functional—it's fun to explore.
We built this website to be more than just an informational resource. It's designed to be your go-to tool whenever you deal with U.S. phone numbers.
Individuals → Identify unknown numbers instantly.
Businesses → Research codes to build trust and credibility.
Students & Researchers → Explore the history and expansion of U.S. area codes.
With a clean interface, accurate data, and fast results, we make area codes simple.
Area codes may look like just three numbers, but they connect millions of people, businesses, and services across the U.S. With hundreds of codes and constant updates, staying informed can be tricky—unless you have the right tool.